A phone's world clock is built for one question: what time is it there. It answers that well, one city and one row at a time. It is usually not built to answer the question that actually decides whether to call someone -- is this a reasonable time for them, or the middle of their night.
Your phone's world clock is fast, always in your pocket, and fine for the one or two cities you check constantly, especially as a lock-screen widget. It shows a time. Working out whether that time is a good one to call still happens in your head.
This tool shows current local time, sunrise, sunset, daylight length, and a plain waking-hours label (Asleep, Early, Working hours, Evening) for every city you pick, side by side in one table -- so the "is this a good time" judgment is answered on the screen, not left for you to do from the clock digits alone.
| Question | Where to answer it |
|---|---|
| What time is it in one city I check constantly? | A phone's world clock or lock-screen widget is faster for this. |
| Is now a reasonable time to call several people in different cities? | This tool's waking-hours label answers it for every city at once, without mental math. |
| When does the sun rise or set there, and how long is the day? | Not shown by most phone clock apps. Computed here from a public-domain almanac algorithm. |
| Can I send someone my exact city list, live rather than a screenshot? | This tool's Copy share link button -- a phone widget can only be screenshotted. |
| Is anything uploaded or tracked? | No. Nothing leaves your browser; there is no account, upload, or network request. |
Yes, and it is fine at the one job it does: showing the current time in a city you added. What it typically does not show is sunrise, sunset, daylight length, or any indication of whether that time is a reasonable one to call — you still have to do that math in your head from the clock digits alone.
Sunrise, sunset, and daylight length for each city, computed from the same public-domain almanac algorithm regardless of platform, plus a plain waking-hours label (Asleep, Early, Working hours, Evening) so you can tell at a glance whether it is a kind time to call — not just what the clock reads. All of it is visible for every city at once, in one table, rather than one screen per city.
Yes, and more usefully: the Copy share link button puts your exact city selection into a URL. The person you send it to opens the same cities in the same order, live and current — not a screenshot that goes stale the moment the clock ticks forward.
Not necessarily — a phone's world clock is still the faster glance for a city or two you check constantly, especially from a lock screen or widget. This tool is built for the case a phone clock handles poorly: several cities at once, with enough context to actually decide when to call, not just what the local time is.
No. The tool this page links to runs entirely in your browser, with no account, no upload, and no network request of any kind.